mywbut.com Data Flow Diagrams (DFDs) 1 mywbut.com Specific Instructional Objectives At the end of this lesson the student will be able to: • • • Identify the activities carried out during the structured analysis phase. Explain what a DFD is. Explain why constructing DFDs are important in arriving at a good software design. • Explain what a data dictionary is. • Explain the importance of data dictionary. • Identify whether a DFD is balanced. Structured Analysis Structured analysis
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Math Today When We Have Devices Luke A. Douglas Ashford University MAT222: Intermediate Algebra Instructor Robb March 3rd‚ 2014 Math Today When We Have Devices Some think that math has no place in the world‚ and I must admit that I am one of those people. I understand that we do use math everyday but in an age of technology it’s no longer needed as much as it once was; or is it? I theorize that math is still an important tool that we must remain proficient at to keep up with the times
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How To Study Mathematics How to Study Mathematics Written by Paul Dawkins Before I get into the tips for how to study math let me first say that everyone studies differently and there is no one right way to study for a math class. There are a lot of tips in this document and there is a pretty good chance that you will not agree with all of them or find that you can’t do all of them due to time constraints. There is nothing wrong with that. We all study differently and all that anyone can ask of
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MATH PROJECT SELECTION LIST 1. Investigate the five "perfect" (or Platonic) solids and explain why there are only five. References: "The Mathematics Teacher"‚ April ’77‚ p. 335; I have directions for making the solids from strips of paper; NCTM Student Math Notes‚ May 1999. 2. Research an invention based on unusual geometric properties or configurations (e.g. Rolamite Bearing‚ Wankel Engine‚ Holograms‚ etc.). References: "Popular Science"‚ Feb. ’76‚ p. 106; "Popular Science"‚ Aug
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Math and Origami Origami is a Traditional Visual and Sculpting Art of paper folding that originated from Japan. The word Origami is Japanese from the Henian era‚ which means Paper-Folding (Ori-Fold Gami-Paper) and was used primarily at ceremonial occasions. Origami products you create come from a single sheet of paper and no cutting! The original paper used for origami is called Kami or Washi and is a very flat-foldable paper that is two different colours and is just slightly thicker than tissue
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HOW IS MATH USED IN MUSIC? Math can be used in music in many different ways. Music theorists often use mathematics to understand music‚ and although music is evidently abstract in modern mathematics‚ mathematics is “the basis of sound” and sound itself “in its musical aspects exhibits a remarkable array of number properties.” The average person lacking in great knowledge of math and musical theories would not categorize mathematics with music. In actuality‚ math and music are related‚ and we use
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TRIGONOMETRY EXPLORATION by Willy Wibamanto 1. The graphs y= and y= intersect at the origin. 2. The graphs intersect at the origin. 3. As the degree of the polynomial increases‚ the graphs are approaching y=sin (x). 4. As the degree of the polynomial increases‚ the graphs are moving away from y=cos (x). 5a. When y = sin (1)‚ y = 0.841. Using the Taylor series with two terms‚ y = 0.830. When y = sin (5)‚ y = -0.958. Using the Taylor series with two terms‚ y = - 15
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The Future of Social Security COM/156 December 5‚ 2010 Karen Williams The Future of Social Security In the United States‚ many people believe that Social Security will be enough to support them upon retirement and have not prepared themselves adequately by establishing pensions‚ retirement plans and savings accounts. Believing this way can get many people into trouble once they reach an age that they would like to retire. These people are finding out that Social Security is just not
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IB Math Studies Internal Assessment: Is the distance a tennis ball travels horizontally dependent on the angle of which it is dropped at? Exam Session: May 2014 School Name: Teacher: Course: IB Math Studies Word Count: 654 Name: Is the distance a tennis ball travels horizontally dependent on the angle of which it is dropped at? Introduction In tennis‚ players hit the tennis ball in certain ways so the ball goes the way they want it to go. Hitting it at certain angles enables
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Entity-Relationship (E/R) Model Dr P Sreenivasa Kumar Professor CS&E Dept I I T Madras Entity-Relationship (E/R) Model Widely used conceptual level data model • proposed by Peter P Chen in 1970s Data model to describe the database system at the requirements collection stage • high level description. • easy to understand for the enterprise managers. • rigorous enough to be used for system building. Concepts available in the model • entities and attributes of entities. • relationships between
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